Night terrors| Phanfic AU

Dan has... family issues. He's very insecure. But cocky. One day on the way to lunch, the underground breaks down, leaving Dan stuck in car train with another person. They aren't as rude as others. In fact, they might have some things in common...
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She's screaming. He can see her lips moving but I can't hear anything. The elder one dashes toward them. He heard the screams from his room. The 8-year-old stands fear stricken, in the doorway. He's trying to pull the monster off of her. The monster whips around and gives him similar looking black patches on his face and body. His body goes limp after the monster repeatedly bashes him with a stool found nearby. The monster turns toward her to copy the actions previously. She's already limping toward the phone. She's picked it up and dialed the three numbers. The monster starts toward her, stool held high over his head as he comes upon her...